You will need the RNS510 POIs inspect0r v 3 by rds++ (N.B: these instructions are specific to that version, so that is the version you will need to search for and download) and a suitable file editor, such as VEDIT 6.1.
I have tried using MS Notepad to edit the .toc file, but I now prefer a dedicated editor, as results from Notepad can vary. Here's the whole process for English Language users, with screen shots to assist.
Insert the Skoda Superb II SatNav disk into the DVD drive on your computer (Drive E: in this example).
Using the RNS510 POIs inspect0r, log onto the DVD drive. Click on "Load" and a choice of languages will drop down from the adjacent window. Choose "ENG."
Three manufacturers, Volkswagen, Seat and Skoda will display in the left-hand pane. Click on the Skoda logo and the directory tree of the existing POIs will appear, like this:
Right-click on "Car and Travel (10003) then select "Add POI/Group Category," choosing "before selected poi" from the pop-out menu. A box appears, showing the ID: of the new category as "80001" on a blue background. Choose a name for the category - this example uses "Cameras."
Click on "Group Category." Now browse to the location of the icon file you want to appear. This must be in .png format, have the file name in upper case letters, the extension (.png) in lower case letters and measure 34 pixels wide by 39 pixels high. Repeat the icon file name only in the next window, you'll see that the .png file extension already appears to the right of it.
Click on "OK." A "Saved" box will appear. Click "OK" on that small box and the screen will refresh. You will now see your new POI category in the tree.
Right-click on the new category, "Cameras (80001)," then select "Add POI/Group Category," this time choosing "as 1st. child of selected group" from the pop-out menu. A box appears, showing the ID: of the new category as "80002"
Choose a name for the POI sub-category. My example uses "Static." Browse to the icon file you need, repeat the file name only, as before, then browse to the data file for your POIs, which must be in .asc format. Click "OK."
Once again, you'll see the small "Saved" box. Click "OK" and the screen refreshes, showing the new POI sub-category. Repeat the process for any additional categories by right-clicking on the new sub-category (Static) then choosing ""Add POI/Group Category," then "after selected poi" from the pop-out menu.
Once you've made your additions, click on "Create ISO & Burn DVD." A box appears, requesting a Volume ID, which must be different from the one shown, by at least one number, either higher or lower. Change by using the up/down arrows. Tick "Burn DVD" and select the DVD writing drive (D: in this example). Click "Start" and burn to a good-quality DVD (remember that these "ISO create and burn" functions require a donation first).
That completes the manufacture of the replacement SatNav DVD.
In your Superb II, switch on Columbus and allow a couple of minutes for the unit to fully load existing data. Now load your new DVD into the slot. From the messages that pop up, select "Continue" first, then "Save." Saving the new data to the hard drive will take about 30 - 40 minutes. You will not see a progress bar, but if you briefly press the "Eject" button after three or four minutes of loading time, you'll see a "Notify" option appear. Choose that and a message will then appear when all the data has loaded. You still won't get a progress bar in the meantime.
Once all the data has loaded, it's now time to select your POIs, including your new ones, of course, together with whatever other existing POIs you want - up to 10 categories maximum. Category icons appear along the foot of the display, so you can easily see how many you've selected.
Now, leaving it running, re-boot the Columbus ("<" + ">" + "i" together).
After re-booting, switch it on again. The new POIs will now display, but - remember - there will be no audible warning accompanying them. Job done!
I hope that this page made the task considerably easier than it might have been for you.
All and any feedback is appreciated.
Ray Girling, March 2009.